The Autel AL319 OBD-II scanner was slow to boot up, slow to read codes, and difficult to navigate. Thanks to a single directional button, churning through the menus takes some practice (and patience).

The Autel AL319 OBD-II scanner was slow to boot up, slow to read codes, and difficult to navigate. Thanks to a single directional button, churning through the menus takes some practice (and patience).

Did your vehicle's check-engine light just pop on? An OBD-II scanner can provide some direction. We tested a handful to find ...

The Autel AL319 OBD-II scanner was slow to boot up, slow to read codes, and difficult to navigate. Thanks to a single directional button, churning through the menus takes some practice (and patience).

A code reader for your car can mean the difference between dropping everything and heading for the mechanic and letting that warning light ride a little bit.